/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hive.service;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.util.Random;

import org.junit.Before;
import org.junit.Test;

/**
 * TestCookieSigner.
 *
 */
public class TestCookieSigner {
  private static final Random RAN = new Random();

  private CookieSigner cs;

  @Before
  public void setUp() {
    cs = new CookieSigner(Long.toString(RAN.nextLong()).getBytes());
  }

  @Test
  public void testVerifyAndExtract() {
    String originalStr = "cu=scott";
    String signedStr = cs.signCookie(originalStr);
    assertEquals(originalStr, cs.verifyAndExtract(signedStr));
  }

  @Test
  public void testVerifyAndExtractNoSignature() {
    String originalStr = "cu=scott";
    String signedStr = cs.signCookie(originalStr);
    String modifedSignedStr = signedStr.replace("&s=", "");
    try {
      cs.verifyAndExtract(modifedSignedStr);
    } catch (IllegalArgumentException e) {
      assertEquals("Invalid input sign: " + modifedSignedStr, e.getMessage());
      return;
    }
    fail("Expected IllegalArgumentException due to no signature");
  }

  @Test
  public void testVerifyAndExtractInvalidSignature() {
    String originalStr = "cu=scott";
    String signedStr = cs.signCookie(originalStr);
    String modifedSignedStr = signedStr.replace("&s=", "&s=abc");
    try {
      cs.verifyAndExtract(modifedSignedStr);
    } catch (IllegalArgumentException e) {
      assertTrue(e.getMessage().startsWith("Invalid sign= "));
      return;
    }
    fail("Expected IllegalArgumentException checking signature");
  }
}
